The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2016
Filed:
Oct. 23, 2013
Johnson Controls Technology Company, Holland, MI (US);
Steven T. Sommer, York, PA (US);
Jeb W. Schreiber, Emigsville, PA (US);
Steven J. Estes, York, PA (US);
Johnson Controls Technology Company, Holland, MI (US);
Abstract
A method for cooling a compressor motor () and a cooling circuit utilizing refrigerant that originates in the condenser () to cool a motor () and electromagnetic bearings (). The motor drives a compressor (), while the electromagnetic bearings support the motor rotor () during operation of the compressor. Liquid refrigerant from the condenser is expanded into a two-phase mixture, passed over the stator, expanded a second time, passed over the bearings and between the stator and rotor, before being returned to an evaporator ().